You can't totally shield your kids from getting colds or the flu, but you can build up their immune systems with nutrient-dense foods. These snacks are so good, they won't even know they're good for them!
When you've got the cold or flu, it's essential to load up on caffeine-free liquids to keep you hydrated. Herbal teas, like this one featuring chamomile, are soothing. Add a touch of honey to ease sore throats and suppress coughs.